The Atom & Periodic Table

A substance that consists of one type of atom is called an ______

• element

• subatomic particle

• electron

• matter

The positively charged subatomic particle contained in the nucleus of an atom

• proton

• neutron

• electron

• matter

A negatively charged subatomic particle that orbits the nucleus of an atom

• proton

• neutron

• electron

• matter

A row on the Periodic Table of Elements

• family

• period

• row

• isotope

A grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

one or two letters that represent the name of an element

• element name

• element symbol

• atomic number

• atomic mass

What is the atomic number of Barium, Ba? (enlarge the periodic table)

• 20

• 38

• 56

• 88

Tags

NGSS.MS-PS1-1

How many protons are in a sodium atom, Na? (tap to enlarge the periodic table)

• Sodium has 1 proton.

• Sodium has 3 protons.

• Sodium has 11 protons

Tags

NGSS.MS-PS1-1

If an atom has 10 electrons, how many protons does it have?

• 0

• 1

• 10

• 5

Tags

NGSS.MS-PS1-1

Each column in the periodic table is called a 

• period
• group
• cluster
• unit